This typically occurs in your legs, but can also happen in the veins in your arms or neck.

According to the Mayo Clinic, thrombophlebitis can occur in a vein near the surface of your skin or deep in a muscle. Blood clots in your deep veins can potentially cause more serious health problems, the Mayo Clinic states. These clots are at risk of breaking free and causing a pulmonary embolism.

Thrombophlebitis can be caused by periods of inactivity, such as being on bed rest or on long flights.

A law enforcement official tells The Associated Press that a Justice Department investigation has found patterns of racial bias in the Ferguson, Missouri, police department and at the municipal jail and court.